/* ===========================================
   AiEMe Design Studio - Styles
   =========================================== */

:root {
  /* App Colors (Studio UI) */
  --app-bg: #0a0a0b;
  --app-surface: #141416;
  --app-surface-2: #1c1c1f;
  --app-border: rgba(255, 255, 255, 0.08);
  --app-border-focus: rgba(255, 255, 255, 0.2);
  --app-text: #f4f4f5;
  --app-text-muted: #a1a1aa;
  --app-text-dim: #71717a;
  --app-accent: #22c55e;
  --app-accent-hover: #16a34a;
  --app-accent-soft: rgba(34, 197, 94, 0.15);
  --app-danger: #ef4444;

  /* Sizing */
  --header-height: 56px;
  --config-width: 380px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* ===========================================
   Reset & Base
   =========================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--app-bg);
  color: var(--app-text);
  line-height: 1.5;
  font-size: 14px;
}

/* ===========================================
   App Header
   =========================================== */

.app-header {
  height: var(--header-height);
  background: var(--app-surface);
  border-bottom: 1px solid var(--app-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  gap: 1rem;
}

.header-left, .header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--app-accent);
}

.logo span {
  font-weight: 500;
  color: var(--app-text-muted);
  margin-left: 0.25rem;
}

/* Step Navigation */
.step-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.step-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.875rem;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--app-text-muted);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.step-btn:hover {
  background: var(--app-surface-2);
  color: var(--app-text);
}

.step-btn.active {
  background: var(--app-accent-soft);
  color: var(--app-accent);
}

.step-btn .step-num {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--app-surface-2);
  border-radius: 50%;
  font-size: 0.7rem;
  font-weight: 600;
}

.step-btn.active .step-num {
  background: var(--app-accent);
  color: #000;
}

.step-btn.completed .step-num {
  background: var(--app-accent);
  color: #000;
}

/* ===========================================
   Buttons
   =========================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--app-accent);
  color: #000;
}

.btn-primary:hover {
  background: var(--app-accent-hover);
}

.btn-secondary {
  background: var(--app-surface-2);
  color: var(--app-text);
  border: 1px solid var(--app-border);
}

.btn-secondary:hover {
  border-color: var(--app-border-focus);
  background: var(--app-surface);
}

.btn-ghost {
  background: transparent;
  color: var(--app-text-muted);
}

.btn-ghost:hover {
  background: var(--app-surface-2);
  color: var(--app-text);
}

.btn-danger {
  background: transparent;
  color: var(--app-danger);
  border: 1px solid var(--app-danger);
}

.btn-danger:hover {
  background: var(--app-danger);
  color: #fff;
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
}

.btn-icon {
  width: 32px;
  height: 32px;
  padding: 0;
}

/* ===========================================
   App Layout - Toggle Based
   =========================================== */

.app-layout {
  height: calc(100vh - var(--header-height));
  position: relative;
}

/* Config Panel - Full Screen */
.config-panel {
  position: absolute;
  inset: 0;
  background: var(--app-surface);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

body.preview-mode .config-panel {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.config-panel::-webkit-scrollbar {
  width: 6px;
}

.config-panel::-webkit-scrollbar-track {
  background: transparent;
}

.config-panel::-webkit-scrollbar-thumb {
  background: var(--app-border);
  border-radius: 3px;
}

/* Step Content */
.step-content {
  padding: 2rem;
  flex: 1;
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
}

.step-header {
  margin-bottom: 1.5rem;
}

.step-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.step-header p {
  color: var(--app-text-muted);
  font-size: 0.875rem;
}

/* Config Footer */
.config-footer {
  padding: 1rem 2rem;
  border-top: 1px solid var(--app-border);
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  background: var(--app-surface);
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
}

/* ===========================================
   Form Elements
   =========================================== */

.form-group {
  margin-bottom: 1.25rem;
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--app-text);
  margin-bottom: 0.5rem;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--app-text-dim);
  margin-top: 0.375rem;
}

.form-input {
  width: 100%;
  padding: 0.625rem 0.875rem;
  background: var(--app-bg);
  border: 1px solid var(--app-border);
  border-radius: var(--radius-sm);
  color: var(--app-text);
  font-size: 0.875rem;
  transition: border-color var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--app-accent);
}

.form-input::placeholder {
  color: var(--app-text-dim);
}

textarea.form-input {
  min-height: 80px;
  resize: vertical;
}

select.form-input {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2371717a' stroke-width='2'%3E%3Cpolyline points='6,9 12,15 18,9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
}

/* Color Picker */
.color-picker-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.color-picker {
  width: 44px;
  height: 44px;
  padding: 0;
  border: 2px solid var(--app-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  overflow: hidden;
}

.color-picker::-webkit-color-swatch-wrapper {
  padding: 0;
}

.color-picker::-webkit-color-swatch {
  border: none;
  border-radius: 4px;
}

.color-picker:focus {
  border-color: var(--app-accent);
  outline: none;
}

.color-value {
  flex: 1;
}

/* Option Cards */
.option-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.option-card {
  padding: 0.875rem;
  background: var(--app-bg);
  border: 2px solid var(--app-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.option-card:hover {
  border-color: var(--app-border-focus);
}

.option-card.selected {
  border-color: var(--app-accent);
  background: var(--app-accent-soft);
}

.option-card-icon {
  width: 32px;
  height: 32px;
  margin: 0 auto 0.5rem;
  color: var(--app-text-muted);
}

.option-card.selected .option-card-icon {
  color: var(--app-accent);
}

.option-card-label {
  font-size: 0.8125rem;
  font-weight: 500;
}

/* Font Preview Cards */
.font-cards {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.font-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  background: var(--app-bg);
  border: 2px solid var(--app-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.font-card:hover {
  border-color: var(--app-border-focus);
}

.font-card.selected {
  border-color: var(--app-accent);
  background: var(--app-accent-soft);
}

.font-card-preview {
  font-size: 1.25rem;
  flex: 1;
}

.font-card-name {
  font-size: 0.75rem;
  color: var(--app-text-muted);
  min-width: 100px;
  text-align: right;
}

/* Color Palette Presets */
.palette-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.palette-card {
  padding: 0.5rem;
  background: var(--app-bg);
  border: 2px solid var(--app-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.palette-card:hover {
  border-color: var(--app-border-focus);
}

.palette-card.selected {
  border-color: var(--app-accent);
}

.palette-colors {
  display: flex;
  height: 32px;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.palette-colors span {
  flex: 1;
}

.palette-name {
  font-size: 0.75rem;
  text-align: center;
  color: var(--app-text-muted);
}

/* Pages List */
.pages-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.page-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--app-bg);
  border: 2px solid var(--app-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.page-item:hover {
  border-color: var(--app-border-focus);
}

.page-item.active {
  border-color: var(--app-accent);
  background: var(--app-accent-soft);
}

.page-icon {
  width: 20px;
  height: 20px;
  color: var(--app-text-muted);
  flex-shrink: 0;
}

.page-item.active .page-icon {
  color: var(--app-accent);
}

.page-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  min-width: 0;
}

.page-name-input {
  background: transparent;
  border: none;
  color: var(--app-text);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0;
  width: 100%;
}

.page-name-input:focus {
  outline: none;
}

.page-slug {
  font-size: 0.7rem;
  color: var(--app-text-dim);
  font-family: 'JetBrains Mono', monospace;
}

.page-delete-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--app-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.page-delete-btn:hover {
  background: var(--app-surface-2);
  color: var(--app-danger);
}

.page-delete-btn svg {
  width: 16px;
  height: 16px;
}

.add-page-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.625rem;
  background: transparent;
  border: 2px dashed var(--app-border);
  border-radius: var(--radius-sm);
  color: var(--app-text-muted);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.add-page-btn:hover {
  border-color: var(--app-accent);
  color: var(--app-accent);
  background: var(--app-accent-soft);
}

.add-page-btn svg {
  width: 16px;
  height: 16px;
}

/* Sections List */
.sections-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.section-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--app-bg);
  border: 1px solid var(--app-border);
  border-radius: var(--radius-sm);
  cursor: grab;
  transition: all var(--transition-fast);
}

.section-item:hover {
  border-color: var(--app-border-focus);
}

.section-item.dragging {
  opacity: 0.5;
}

.section-drag-handle {
  color: var(--app-text-dim);
  cursor: grab;
}

.section-icon {
  width: 20px;
  height: 20px;
  color: var(--app-text-muted);
}

.section-name {
  flex: 1;
  font-size: 0.875rem;
  font-weight: 500;
}

.section-toggle {
  width: 36px;
  height: 20px;
  background: var(--app-surface-2);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  position: relative;
  transition: background var(--transition-fast);
}

.section-toggle::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: var(--app-text-muted);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.section-toggle.active {
  background: var(--app-accent);
}

.section-toggle.active::after {
  left: 18px;
  background: #000;
}

/* Add Section Button */
.add-section-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.75rem;
  background: transparent;
  border: 2px dashed var(--app-border);
  border-radius: var(--radius-sm);
  color: var(--app-text-muted);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.add-section-btn:hover {
  border-color: var(--app-accent);
  color: var(--app-accent);
  background: var(--app-accent-soft);
}

/* ===========================================
   Preview Panel - Full Screen
   =========================================== */

.preview-panel {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  background: var(--app-bg);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

body.preview-mode .preview-panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.preview-toolbar {
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  background: var(--app-surface);
  border-bottom: 1px solid var(--app-border);
}

.preview-device-toggle {
  display: flex;
  gap: 0.25rem;
}

.device-btn {
  width: 36px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--app-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.device-btn:hover {
  background: var(--app-surface-2);
  color: var(--app-text);
}

.device-btn.active {
  background: var(--app-accent-soft);
  color: var(--app-accent);
}

/* Page navigation tabs in preview */
.preview-page-nav {
  display: flex;
  gap: 0.25rem;
  padding: 0.25rem;
  background: var(--app-bg);
  border-radius: var(--radius-sm);
}

.preview-page-tab {
  padding: 0.375rem 0.75rem;
  background: transparent;
  border: none;
  border-radius: 4px;
  color: var(--app-text-muted);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.preview-page-tab:hover {
  color: var(--app-text);
}

.preview-page-tab.active {
  background: var(--app-surface);
  color: var(--app-accent);
}

.preview-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: #1a1a1c;
  overflow: hidden;
}

#preview-frame {
  width: 100%;
  height: 100%;
  border: none;
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  transition: width var(--transition-normal);
}

.preview-container.tablet #preview-frame {
  width: 768px;
  max-width: 100%;
}

.preview-container.mobile #preview-frame {
  width: 375px;
  max-width: 100%;
}

/* ===========================================
   Preview Toggle Button
   =========================================== */

.preview-toggle-btn {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--app-accent);
  color: #000;
  border: none;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(34, 197, 94, 0.4);
  transition: all var(--transition-fast);
  z-index: 100;
}

.preview-toggle-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(34, 197, 94, 0.5);
}

.preview-toggle-btn .icon-edit {
  display: none;
}

body.preview-mode .preview-toggle-btn {
  background: var(--app-surface);
  color: var(--app-text);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

body.preview-mode .preview-toggle-btn:hover {
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.5);
}

body.preview-mode .preview-toggle-btn .icon-preview {
  display: none;
}

body.preview-mode .preview-toggle-btn .icon-edit {
  display: block;
}

/* ===========================================
   Modals
   =========================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  width: 100%;
  max-width: 500px;
  background: var(--app-surface);
  border: 1px solid var(--app-border);
  border-radius: var(--radius-lg);
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-lg {
  max-width: 700px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--app-border);
}

.modal-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--app-text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--app-surface-2);
  color: var(--app-text);
}

.modal-body {
  padding: 1.5rem;
  max-height: 60vh;
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--app-border);
}

/* Export Modal */
.export-tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1rem;
  padding: 0.25rem;
  background: var(--app-bg);
  border-radius: var(--radius-sm);
}

.export-tab {
  flex: 1;
  padding: 0.5rem 1rem;
  background: transparent;
  border: none;
  border-radius: 4px;
  color: var(--app-text-muted);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.export-tab:hover {
  color: var(--app-text);
}

.export-tab.active {
  background: var(--app-surface);
  color: var(--app-text);
}

.export-content {
  position: relative;
}

.export-tab-content {
  display: none;
}

.export-tab-content.active {
  display: block;
}

.export-hint {
  font-size: 0.8125rem;
  color: var(--app-text-muted);
  margin-bottom: 1rem;
}

.export-tab-content pre {
  padding: 1rem;
  background: var(--app-bg);
  border: 1px solid var(--app-border);
  border-radius: var(--radius-sm);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--app-text);
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 300px;
  overflow-y: auto;
}

/* Email Form */
.email-form {
  padding: 0.5rem 0;
}

.email-form .form-group {
  margin-bottom: 1.5rem;
}

.subdomain-input-group {
  display: flex;
  align-items: center;
  gap: 0;
}

.subdomain-input-group .form-input {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  border-right: none;
  max-width: 200px;
}

.subdomain-suffix {
  padding: 0.625rem 0.875rem;
  background: var(--app-surface);
  border: 1px solid var(--app-border);
  border-top-right-radius: var(--radius-sm);
  border-bottom-right-radius: var(--radius-sm);
  color: var(--app-text-muted);
  font-size: 0.875rem;
  white-space: nowrap;
}

.required {
  color: #ef4444;
}

.email-preview {
  background: var(--app-bg);
  border: 1px solid var(--app-border);
  border-radius: var(--radius-sm);
  padding: 1rem;
}

.email-preview-header {
  display: flex;
  gap: 0.75rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--app-border);
  font-size: 0.875rem;
}

.email-preview-header:last-child {
  border-bottom: none;
}

.email-preview-label {
  color: var(--app-text-muted);
  min-width: 80px;
  font-weight: 500;
}

.email-attachments {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.attachment-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.625rem;
  background: var(--app-accent-soft);
  color: var(--app-accent);
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
}

/* Load Modal */
.load-textarea {
  width: 100%;
  min-height: 120px;
  padding: 0.875rem;
  background: var(--app-bg);
  border: 1px solid var(--app-border);
  border-radius: var(--radius-sm);
  color: var(--app-text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8125rem;
  resize: vertical;
}

.load-textarea:focus {
  outline: none;
  border-color: var(--app-accent);
}

.load-divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1rem 0;
  color: var(--app-text-dim);
  font-size: 0.8125rem;
}

.load-divider::before,
.load-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--app-border);
}

.file-upload-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.875rem;
  background: var(--app-surface-2);
  border: 2px dashed var(--app-border);
  border-radius: var(--radius-sm);
  color: var(--app-text-muted);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.file-upload-btn:hover {
  border-color: var(--app-accent);
  color: var(--app-accent);
}

.file-upload-btn input {
  display: none;
}

/* ===========================================
   Responsive
   =========================================== */

@media (max-width: 1024px) {
  .step-btn span {
    display: none;
  }
}

@media (max-width: 768px) {
  .header-center {
    display: none;
  }

  .preview-toggle-btn {
    bottom: 1rem;
    right: 1rem;
    padding: 0.625rem 1rem;
  }

  .preview-toolbar {
    flex-wrap: wrap;
    height: auto;
    padding: 0.5rem;
    gap: 0.5rem;
  }

  .preview-page-nav {
    order: 2;
    width: 100%;
    overflow-x: auto;
  }
}

/* ===========================================
   Welcome Modal
   =========================================== */

.modal-welcome {
  max-width: 480px;
  text-align: center;
}

.welcome-header {
  padding: 2rem 2rem 1.5rem;
}

.welcome-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--app-accent);
  margin-bottom: 0.75rem;
}

.welcome-header h2 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.welcome-header p {
  color: var(--app-text-muted);
  font-size: 0.875rem;
}

.welcome-options {
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.welcome-option {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--app-bg);
  border: 2px solid var(--app-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}

.welcome-option:hover {
  border-color: var(--app-accent);
  background: var(--app-accent-soft);
}

.welcome-option-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--app-surface-2);
  border-radius: var(--radius-sm);
  color: var(--app-accent);
  flex-shrink: 0;
}

.welcome-option-icon svg {
  width: 20px;
  height: 20px;
}

.welcome-option-text {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.welcome-option-text strong {
  font-size: 0.9375rem;
  color: var(--app-text);
}

.welcome-option-text span {
  font-size: 0.8125rem;
  color: var(--app-text-muted);
}

/* DSFP Template Button */
.welcome-template {
  padding: 0 1.5rem;
  margin-bottom: 1rem;
}

.welcome-template-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.15) 0%, rgba(59, 130, 246, 0.15) 100%);
  border: 2px solid var(--app-accent);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
  position: relative;
  overflow: hidden;
}

.welcome-template-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.welcome-template-btn:hover::before {
  opacity: 1;
}

.welcome-template-btn:hover {
  border-color: var(--app-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(34, 197, 94, 0.2);
}

.template-badge {
  position: absolute;
  top: 0;
  right: 0;
  padding: 0.25rem 0.75rem;
  background: var(--app-accent);
  color: #000;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: 0 var(--radius-md) 0 var(--radius-sm);
}

.template-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--app-accent);
  border-radius: var(--radius-sm);
  color: #000;
  flex-shrink: 0;
}

.template-icon svg {
  width: 24px;
  height: 24px;
}

.template-text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}

.template-text strong {
  font-size: 1.0625rem;
  color: var(--app-text);
}

.template-text span {
  font-size: 0.8125rem;
  color: var(--app-text-muted);
  line-height: 1.4;
}

.template-arrow {
  width: 24px;
  height: 24px;
  color: var(--app-accent);
  flex-shrink: 0;
}

.template-arrow svg {
  width: 24px;
  height: 24px;
}

.welcome-divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0 1.5rem;
  margin-bottom: 1rem;
}

.welcome-divider::before,
.welcome-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--app-border);
}

.welcome-divider span {
  font-size: 0.75rem;
  color: var(--app-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.welcome-dismiss {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1.25rem;
  font-size: 0.8125rem;
  color: var(--app-text-dim);
  cursor: pointer;
}

.welcome-dismiss input {
  accent-color: var(--app-accent);
}

/* ===========================================
   Tour Overlay
   =========================================== */

.tour-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.tour-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.tour-overlay::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
}

.tour-spotlight {
  position: absolute;
  border-radius: var(--radius-md);
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.7);
  transition: all 0.4s ease;
  pointer-events: none;
}

.tour-tooltip {
  position: absolute;
  width: 320px;
  background: var(--app-surface);
  border: 1px solid var(--app-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  transition: all 0.4s ease;
  pointer-events: auto;
}

.tour-content {
  padding: 1.25rem;
}

.tour-content h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--app-text);
}

.tour-content p {
  font-size: 0.875rem;
  color: var(--app-text-muted);
  line-height: 1.5;
  margin: 0;
}

.tour-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--app-border);
}

.tour-progress {
  font-size: 0.75rem;
  color: var(--app-text-dim);
}

.tour-actions {
  display: flex;
  gap: 0.5rem;
}

/* ===========================================
   Help Button & Panel
   =========================================== */

.help-btn {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--app-surface);
  border: 1px solid var(--app-border);
  border-radius: 50%;
  color: var(--app-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 99;
}

.help-btn:hover {
  color: var(--app-text);
  border-color: var(--app-border-focus);
}

.help-btn svg {
  width: 20px;
  height: 20px;
}

body.preview-mode .help-btn {
  opacity: 0;
  pointer-events: none;
}

.help-panel {
  position: fixed;
  bottom: 5rem;
  left: 1.5rem;
  width: 280px;
  background: var(--app-surface);
  border: 1px solid var(--app-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-normal);
}

.help-panel.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.help-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  border-bottom: 1px solid var(--app-border);
}

.help-panel-header h3 {
  font-size: 0.9375rem;
  font-weight: 600;
}

.help-panel-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--app-text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.help-panel-close:hover {
  background: var(--app-surface-2);
  color: var(--app-text);
}

.help-panel-content {
  padding: 1rem;
  max-height: 400px;
  overflow-y: auto;
}

.help-section {
  margin-bottom: 1.25rem;
}

.help-section:last-child {
  margin-bottom: 0;
}

.help-section h4 {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--app-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.help-shortcut {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.375rem 0;
}

.help-shortcut kbd {
  padding: 0.25rem 0.5rem;
  background: var(--app-bg);
  border: 1px solid var(--app-border);
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--app-text);
}

.help-shortcut span {
  font-size: 0.8125rem;
  color: var(--app-text-muted);
}

.help-action {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.625rem 0.75rem;
  background: var(--app-bg);
  border: 1px solid var(--app-border);
  border-radius: var(--radius-sm);
  color: var(--app-text);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: 0.5rem;
}

.help-action:last-child {
  margin-bottom: 0;
}

.help-action:hover {
  border-color: var(--app-accent);
  background: var(--app-accent-soft);
}

.help-action svg {
  width: 16px;
  height: 16px;
  color: var(--app-text-muted);
}

.help-tips {
  list-style: none;
  padding: 0;
  margin: 0;
}

.help-tips li {
  position: relative;
  padding: 0.375rem 0 0.375rem 1.25rem;
  font-size: 0.8125rem;
  color: var(--app-text-muted);
}

.help-tips li::before {
  content: '•';
  position: absolute;
  left: 0.25rem;
  color: var(--app-accent);
}

/* ===========================================
   Tooltips (for form elements)
   =========================================== */

[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  padding: 0.5rem 0.75rem;
  background: var(--app-bg);
  border: 1px solid var(--app-border);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--app-text);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: 1000;
  pointer-events: none;
}

[data-tooltip]:hover::after {
  opacity: 1;
  visibility: visible;
}

/* ===========================================
   Demo Animations
   =========================================== */

.demo-highlight {
  position: relative;
  z-index: 100;
  animation: demo-pulse 0.8s ease-in-out;
}

.demo-highlight::before {
  content: '';
  position: absolute;
  inset: -4px;
  border: 2px solid var(--app-accent);
  border-radius: inherit;
  pointer-events: none;
  animation: demo-border-pulse 0.8s ease-in-out;
}

.demo-click {
  transform: scale(0.95);
  transition: transform 0.15s ease-out;
}

@keyframes demo-pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(34, 197, 94, 0.3);
  }
}

@keyframes demo-border-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* Prevent interactions during demo */
body.demo-running .config-panel {
  pointer-events: none;
}

body.demo-running .config-panel .demo-highlight {
  pointer-events: auto;
}

/* ===========================================
   Utility
   =========================================== */

.hidden {
  display: none !important;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }